Global Patent Index - EP 1082723 A1

EP 1082723 A1 2001-03-14 - USAGE DEPENDENT TICKET TO PROTECT COPY-PROTECTED MATERIAL

Title (en)

USAGE DEPENDENT TICKET TO PROTECT COPY-PROTECTED MATERIAL

Title (de)

NUTZUNGSABHÄNGIGES IDENTIFIKATOR ZUM SCHUTZ VON KOPIERGESCHÜTZTEM MATERIAL

Title (fr)

TICKET DE PROTECTION DEPENDANT DE L'EMPLOI, CON U POUR LE MATERIEL PROTEGE

Publication

EP 1082723 A1 (EN)

Application

EP 00922543 A

Priority

  • EP 0002599 W
  • US 12616799 P
  • US 45435099 A

Abstract (en)

[origin: WO0058962A1] A usage-limit is associated with each copy of copy-protected material. A conforming playback device determines how much usage has been made of the copy, and only plays the copy-protected material if the usage is within the associated usage-limit of the copy. In a preferred embodiment of this invention, the providing source of the copy contains a total-usage-measure that is allocated among each of the provided copies of the copy-protected material, thereby allowing for more than one copy of the copy-protected material to be produced, or "checked-out" from the providing source. When a copy of the copy-protected material is subsequently returned, or "checked-in" to the providing source, the usage allocation associated with this copy is returned to the total-usage-value. In this manner, if a particular copy of the copy-protected material is lost, damaged, or misplaced, the loss of value to the purchaser is merely a reduction in the available total-usage. In a preferred embodiment, the parameters associated with the usage-limit are communicated via the copy of the material in a secure manner, so that an illicit provider cannot alter these parameters. Similarly, in a preferred embodiment, the parameters associated with the usage-limit are securely bound to the copy-protected material, so that an illicit provider cannot substitute illicit material for the copied material. Other security measures, such as an encryption of the copy-protected material, watermarking, ticketing, and the like, are also compatible with these aforementioned techniques, and are included in a preferred embodiment of this invention.

IPC 1-7 (main, further and additional classification)

G11B 20/00; G06F 1/00

IPC 8 full level (invention and additional information)

G06F 12/14 (2006.01); G06F 1/00 (2006.01); G06F 21/00 (2006.01); G06F 21/02 (2006.01); G06F 21/24 (2006.01); G06K 17/00 (2006.01); G06Q 50/00 (2006.01); G06T 1/00 (2006.01); G09C 1/00 (2006.01); G09C 5/00 (2006.01); G10L 11/00 (2006.01); G11B 20/00 (2006.01); G11B 20/10 (2006.01); H04N 1/387 (2006.01); H04N 5/91 (2006.01); H04N 5/92 (2006.01)

CPC (invention and additional information)

G11B 20/00086 (2013.01); G06F 21/10 (2013.01); G11B 20/00123 (2013.01); G11B 20/0021 (2013.01); G11B 20/00557 (2013.01); G11B 20/00695 (2013.01); G11B 20/00746 (2013.01); G11B 20/00797 (2013.01); G11B 20/00811 (2013.01); G11B 20/00884 (2013.01); G06F 2211/008 (2013.01); G06F 2221/2135 (2013.01); G11B 2020/10546 (2013.01); G11B 2220/60 (2013.01)

Citation (search report)

See references of WO 0058962A1

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

WO 0058962 A1 20001005; CN 1181488 C 20041222; CN 1306664 A 20010801; EP 1082723 A1 20010314; ID 27738 A 20010426; JP 2002540552 A 20021126; US 2004004114 A1 20040108; US 2004004115 A1 20040108; US 6601046 B1 20030729; US 6755346 B2 20040629; US 6817535 B2 20041116

INPADOC legal status


2005-10-12 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20050405

2005-01-12 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20041124

2001-06-06 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20010405

2001-03-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE ES FR GB IT